Products > Test Equipment
Matrix MPS 3005H power supply
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mrjeff51:
Does anyone have the matrix MPS 3005 power supply. I recently bought one from Amazon and it makes a weird series of clicks when I turn the output on or off. Not sure if this is normal or if I should return it.

Here's a video of it:
https://imgur.com/a/yL4NqSF
AndyC:

--- Quote from: mrjeff51 on May 05, 2023, 01:42:45 am ---Does anyone have the matrix MPS 3005 power supply. I recently bought one from Amazon and it makes a weird series of clicks when I turn the output on or off. Not sure if this is normal or if I should return it.

Here's a video of it:
https://imgur.com/a/yL4NqSF

--- End quote ---
That's normal. There are several relays in that power supply, so there will be clicks when adjusting voltage etc.
BeBuLamar:
Yes I have the 3605 and it does click when changing the voltage. It's a linear power supply and needs to switch transformer tap for the voltage ranges to prevent too much heat dissipation.
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